Removable grip for tool holders



April 5, 1932- A. w. GELPCKE 1,852,296

REMOVABLE GRIP FOR TOOL HOLDERS Filed Sept. 24. 1931 u @kww Patented Apr. 5, 1932 UNITED STATES PATENT OFFICE ALFRED W. GELPCKE, 0F BROOKLYN, NEW YORK, ASSIGNOR TO THE RAWLPL'UG COMPANY, ING., OF NEW YORK, N. Y` v REMOVABLE GRIP FOR TOOL HOLDERS Application filed September 24, 1931. Serial No. 564,807.

This invention relates to a removable grip 'for a special tool holder, more especially a tool holder used for holding drills used for making holes in tiling, concrete, and the like 5j for any purpose such as the mounting of tistures of different kinds.

In the past it has been the custom to either use the tool holder without any grip, or provide the tool holder with a non-removable grip.

Itis therefore the object of my invention to provide a grip for the special tool holder to be later described, so constructed that it lits the hand of the operator and is provided with inotecting means, whereby blows, careless or otherwise, glancing from the end of the tool holder will not strike the hand of the operator.

It is another object of my invention to provide a grip which may be removed without diiliculty from the tool holder.

rinother object of my invention is to provide a removable grip which is so constructed to properly position the tool holder in the grip when the holder is forced into position in the grip.

lilith these objects in mind, my invention will be readily understood by reference to the annexed drawings, wherein:

Figure l is a plan view looking down on the top ot the grip showing a special tool holder in position therein.

Figure 2 is a part elevation and part-sec- .tional view through the grip showing the holder and a special tool carried by the holder.

Figure 3 is a sectional view oi' the tool end ot the holder, showing` a modiiied iorm of construction for positioning the tool holder.

In the drawings, wherein like numbers refer to corresponding parts of the various views, l is a grip having a portion 2 to tit the hand of the operator. and an enlarged head or flange 3 which serves at least two purposes which will be later referred to. The grip 1 provided with a substantially uniform bore jfor practically the entire length of the grip. The bore terminates at el in a shoulder or seat adapted to receive a corresponding` beveled part of a tool holder 5.

D The tool holder 5 illustrated, comprises a polygonally shaped piece of metal, preferably ofsuitable steel, the bore in the grip 2 being similarly shaped so as to prevent the holder from turning in the bore. The tool holder 5 is provided with a transverse slot (i, and from the slot 6 to the end 4, there is provided a tapered hole to receive the tapered end 7 of a tool; for example, a Rawldrill especially adapted for use in making holes in tiles, concrete, brick, and the like.

The grip 2 is improved with a transverse slot 8 to cooperate with the slot 6 in the tool holder 5, whereby a wedging tool may be inserted to force the tapered end 7 of the drill 9 out of the tool holder for any purpose de sired.

The opposite end of the tool holder 5 extends a short distance above the flange 3 of the grip 1. From this construction it will be seen that blows glancing from the end of the tool holder 5 will strike the llange 3, thereby protecting the hand ofthe operator. The grip lwith its integral flange 3 is preferably made of a rubber compound vulcan ized to a point whereby the grip willbe relatively stii', yet have considerable resilience so that on wetting the bore with water, the drill holder 5` may be easily hammeredor forced into the position shown in Figure 2.

After waiting for the moisture to dry out, or by artificially drying out, the implement is then ready for use, and the grip will not slide or slip on the tool holder while the implement is in use; but it, after considerable usage, the flange 3 becomes battered and it is desired to change the grip, or the tool holders in the grip, a series of rapid blows on the `flange head 3 will ca use the holderto move longitudinally out of the grip.

In Figure 3 I have vshown a metallic member 10 mouldedinto the drill end of the grip so as to provide a re-enforced seat for the end olf the tool holder 5, but I do not wish to be limited to either of the exact means shown for positioning the tool holder in the grip.

Having thus described my invention, what I claimis z` l. A. removable grip for a tool holder comprising a hollow member internally shaped to receive the tool holder, said member being of rubber' vulcanized to a point where it is relatively stiff, yet very resistant to blows, said member having a part to be gripped by the hand and also having a flanged head for the purpose described, said holder when in operative position in the grip extending beyond the flanged end of the grip, and means posit-ioned at the tool end of the grip to properly locate the tool holder longitudinally in the grip, said grip having a tool opening in alignment with a corresponding opening in the tool holder.

2. A removable grip for a tool holder comprising a member of material' having both stiffness and resilience to a considerable degree, said member having a .bore for t-he tool holder extendingnearly its full length, with means positioned at the tool end of the grip to properly locate the tool holder longitudinally in the grip so the holder is exposed at one end of the grip, said grip having a protecting flange adjacent the exposed end of the tool holder, said grip having a tool opening in alignment with a corresponding opening in the tool holder. Y

3. A rubber grip for a tool holder'having a uniform bore for nearly its entire length to receive the tool holder,ione end of thegrip being provided with means to stop the tool holder when forced into said bore, said. grip having a protecting flange at the free end of 'said bore and the tool holder extending beyond 'the grip at said Yhanged end.

` 4. A removable grip of vresilient material having a bore 'to receive af tool holder, means to properly position the holder in the bore so one end extends beyond the grip, said griphaving a flanged head at the end from which the holder extends whereby blows yglancing off the tool holder will strike the fiange and A not the hand of the operator on the grip, said Vtion of blows to the flanged end ofthe grip,

said grip having a small opening at the end opposite said flanged end to allow tools to be inserted into the holder.

In testimony whereof, I aix my signature.

ALFRED W. GELPCKE flange also serving to receive blows thereon applied to cause the toolholder to come out of the grip. Y i Y 5. A removable rubber grip for a tool holder which has a transverse slot `for use in ejecting a. tool from the holder, said grip having an open bore from one end to a. point near the other vend to vreceive said tool holder, and a smaller opening at the other-end of said grip .to allow a tool to be passed into the holder, means within the grip at said point to stop the tool holder when it is forced into the grip', said holder extending beyond the grip at the open bore end, said grip having a protecting ilange at the end adj acentthe open bore from which' the holder projects, and a transverse slot to cooperate with said sloty in the tool holder. p

6. A removable grip for a tool holder, having a. bore to receive the holder, the grip being provided with means to I position the holder in the grip so only one end `of the holder protrudes from the grip, said grip having tito izs 

